Chengdu Q-Mantic Industrial Products Co, Ltd.

Technical Information

DMD Epoxy Pre-impregnated Material

Product No.:MAL03

MAL03150/MAL03180/MAL03200/MAL03250/MAL03300/MAL03400

Prepreg DMD (class F) is formed in the process of procuring the modified F-class DMD with Impregnation of hi-temperature resistant Epoxy resin into B-stage by baking. It is Class F (155°C) insulating material. This product has long shelf life at room temperature, low procuring temperature and time, showing excellent electrical insulation, bonding and heat-resistant properties.

The coated epoxy resin contains reactive groups such as epoxy group and amino group. It can be cured quickly at medium and high temperatures, and is firmly bonded to copper foil. No low molecular volatiles are produced during drying and curing, to form an insulating structure with a very small shrinkage. Products are widely used in dry-type transformer low-voltage coil interlayer insulation, can also be used for f-class motor slot insulation and interphase insulation.


Product Detail

Product Tags

Characteristic

Property Name

General Table of Properties

Nominal Thickness(µm)

150

180

200

250

300

400

Thickness of Tolerance(µm)

20

30

40

Tensile Strength MD, No Bending(N/cm) ≥

70

80

1

Volatile Content(%)≤

1.5

Soluble resin content(g/m2) ≥

45

Breakdown Voltage(Kv) ≥

7

8

10

Tensile and Shear Strength(Mpa) ≥

3.0

Appearance

Soft, smooth, free of any delamination impurity, damage, crack, blister

Color

Red, Brown, White

Thermal Rating Class(℃) ≥

155

Application

It is used for liner insulation of copper foil(aluminum foil)-wrapped low voltage coils in dry-type transformer and slot insulation and interphase insulation in B-F class motor and electrical appliances.

Packing and Storage

Min. slitting width: 6mm
Core ID: 3” / 6”
Storage: Keep in room temperature. Remove package before use. Unused parts are wrapped in original packaging to avoid moisture absorption. It is recommended to be used up in 6 months.

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